Please note a few things. The knob on the left of the hot platecontrols the heat. It is increased at one point near the beginningof the video. The knob on the right controls the stirringmechanism. It is a little confusing at first when there is ice in thebeaker; you might mistake the stirrer for an ice cube. Pleaseknow that there is a white, magnetic "bean" in the beaker thatstirs the liquid when the magnetic stirrer is turned on. That'swhat the noise is and that's what that object in the beaker.HEAT & STIROFF/ONPOWERON100HAT POWRIf you did the experiment this is what it would look likeMaterials• 500 mL beaker• Water• Ice• Hot plate• Temperature probe (with fancy computer access)• Stirrer• Timer (you'd need one if not for the computer program)Procedure1. Place 300 mL of ice in a 500 mL beaker.2. Add enough water to reach the 600 mL line.3. Add magnetic stirrer to beaker and place on hot plate.4. Insert temperature probe, ensuring the devise is connect tothe computer.5. Turn on hot plate.6. Watch and observe as the temperature of the water goesfrom 0°C to boiling.(here write a few observations you made as you watched thisexperiment. What did you notice about the beaker? Or thegraph? Can you see any sources of error? What did youobserver? Include 2 -3 things)Observations: Questions:1. Why is energy needed to boil water?2. When water is heated, the temperature eventually reaches aconstant value (as in lines 2 and 4 on the graph) and formsa plateau on the graph. What does the plateau indicate?3. 175 g of water (1) was heated from 15°C to 88°C. Howmany kilojoules were absorbed by the water?4. How many kilojoules are required at 0°C to melt an icecube with a mass of 25 g?5. How many kilojoules are required to melt 15 g of ice at0°C and raise the temperature of the liquid that forms to85°C?32HEATING TIME6. Please identify the state of matter at each of the numberedstep of the diagram above. Indicate what I happening(absorbing heat? Or changing state?). And indicate whichformulayouwould use to calculate the heat needed orabsorbed at each step in the diagram above.Design Your OwnYou've watched this video. You've seen my procedure andmaterials list for the heating curve of water. Suppose now youare asked to design an experiment to show the cooling curve ofwater. You will need to start with boiling water (because let'snot worry about capturing steam. So, in other words, you havewater boiling along line #4 above (o0ops, did I just give youanswer to a previous question?) Design an experiment whichwill take you from the boiling water to the solid ice cube in #1above (argh! I keep doing it!) Use what you think is necessary.Be creative. You aren’t conducting this experiment, just writingit.Whatwill need to produce:youA list of materials (in a bulleted list – like I provided) Whatwill you use? You can use common kitchen things ratherthan lab materials like beakers etc. right now. A step-by-step procedure. This is where I usually end upwriting the bulk of my comments. Be as specific as youcan. If you want to start with 3 cups of boiling water, thentell me. Your procedure should be reproducible. That is, Ishould be able to do exactly what you want me to do in theorder you tell me. It's like a recipe.A diagram, like the one above, for the cooling of water.Please add in temperatures along the y-axis.TEMPERATURE

Question

Please note a few things. The knob on the left of the hot platecontrols the heat. It is increased at one point near the beginningof the video. The knob on the right controls the stirringmechanism. It is a little confusing at first when there is ice in thebeaker; you might mistake the stirrer for an ice cube. Pleaseknow that there is a white, magnetic &#34;bean&#34; in the beaker thatstirs the liquid when the magnetic stirrer is turned on. That'swhat the noise is and that's what that object in the beaker.HEAT & STIROFF/ONPOWERON100HAT POWRIf you did the experiment this is what it would look likeMaterials• 500 mL beaker• Water• Ice• Hot plate• Temperature probe (with fancy computer access)• Stirrer• Timer (you'd need one if not for the computer program)Procedure1. Place 300 mL of ice in a 500 mL beaker.2. Add enough water to reach the 600 mL line.3. Add magnetic stirrer to beaker and place on hot plate.4. Insert temperature probe, ensuring the devise is connect tothe computer.5. Turn on hot plate.6. Watch and observe as the temperature of the water goesfrom 0°C to boiling.(here write a few observations you made as you watched thisexperiment. What did you notice about the beaker? Or thegraph? Can you see any sources of error? What did youobserver? Include 2 -3 things)Observations: Questions:1. Why is energy needed to boil water?2. When water is heated, the temperature eventually reaches aconstant value (as in lines 2 and 4 on the graph) and formsa plateau on the graph. What does the plateau indicate?3. 175 g of water (1) was heated from 15°C to 88°C. Howmany kilojoules were absorbed by the water?4. How many kilojoules are required at 0°C to melt an icecube with a mass of 25 g?5. How many kilojoules are required to melt 15 g of ice at0°C and raise the temperature of the liquid that forms to85°C?32HEATING TIME6. Please identify the state of matter at each of the numberedstep of the diagram above. Indicate what I happening(absorbing heat? Or changing state?). And indicate whichformulayouwould use to calculate the heat needed orabsorbed at each step in the diagram above.Design Your OwnYou've watched this video. You've seen my procedure andmaterials list for the heating curve of water. Suppose now youare asked to design an experiment to show the cooling curve ofwater. You will need to start with boiling water (because let'snot worry about capturing steam. So, in other words, you havewater boiling along line #4 above (o0ops, did I just give youanswer to a previous question?) Design an experiment whichwill take you from the boiling water to the solid ice cube in #1above (argh! I keep doing it!) Use what you think is necessary.Be creative. You aren’t conducting this experiment, just writingit.Whatwill need to produce:youA list of materials (in a bulleted list – like I provided) Whatwill you use? You can use common kitchen things ratherthan lab materials like beakers etc. right now.> A step-by-step procedure. This is where I usually end upwriting the bulk of my comments. Be as specific as youcan. If you want to start with 3 cups of boiling water, thentell me. Your procedure should be reproducible. That is, Ishould be able to do exactly what you want me to do in theorder you tell me. It's like a recipe.A diagram, like the one above, for the cooling of water.Please add in temperatures along the y-axis.TEMPERATURE

Accepted Answer

Answered: Image /qna-images/answer/9927c252-44f5-4660-b81a-5887030bdd44.jpg